T&D Corp. was founded in 1986 in Matsumoto, Japan, by a small group of engineers with the dream of creating, developing, and producing innovative and interest-sparking products. In the company name, the T stands for “try” and the D stands for “development” and all of the products that they tried and developed. The PC compatible compact data logger called ONDOTORI Jr developed in 1994 was a huge success and since then these data loggers combined with other innovative loggers have continued to be an incredible success in Japan, resulting in a 90-percent market share. For the last 5 years, T&D has been leading the way in providing CE Mark-approved, user-friendly wireless communication loggers.